Muhammad Ali
Winston Churchill

“A kiss can be a comma, a question mark or an exclamation point. That's basic spelling that every woman ought to know.” - Mistinguett  (1875–1956)

Incorrect punctuation marks dogging you?
An array of punctuation marks on a typewriter.
Find out which punctuation mark you are!
For a century it has been part of Oxford University Press style to retain or impose the Oxford comma consistently